Db
Dubnium
Izinto 105 · 268.126 u
I-Transition Metal
d- iblock
Ixesha 7
Iqela 5
I-Solid kwi-RT
I-Radioactive
t½ 1.2 days
I-Synthesizer
I-Wikipedia →
I-Dubnium's chemistry ifundelwe ngokusebenzisa kuphela ii-atoms ezimbalwa ngexesha.
Iimpawu Zobuchopho
| Ii-atom | 268.126 u |
| Uxinano | 29.3 g/cm³ |
| Ukubonakala | I-Metallic (ilindelekile) |
| I-State at Room Temp | I-Solid |
Iimpawu zekhemikhali
| Iindawo zokuthambisa | +5 |
Iimpahla zephetshana elichazayo:
| Uqwalaselo lwe Electron | [Rn] 5f14 6d3 7s2 |
Ukufumana kwakhona
| Ifunyenwe Ngu | Joint Institute for Nuclear Research / Lawrence Berkeley National Laboratory |
| Unyaka Wophando | 1968 |
| Indawo | Dubna, Russia / Berkeley, USA |
| Igama Elilandelayo | Ibizwa ngokuba yi Dubna, Russia |
I-About Dubnium
I-dubnium yi-synthetic, transactinide element esebenza nge-radioactive. Izifundo ezimiselweyo zibonisa ukuba isebenza njenge-niobium ne-tantalum, ngezinto ezithile ezingalindelekanga.
Iinkqubo
No iinkqubo ezisebenzayo. Ukukhangela kwesayensi kuphela.
Inyathelo 1:
Iinkqubo zekhemikhali kwi-dubnium zisebenzisa kuphela ii-atomi ezimbalwa ngexesha elinye, kodwa abaphandi bafumanisa ukuguquka okumangalisayo kukuziphatha okulindelekileyo.
I-Isotopes
| Inani le-Mass | Uninzi | Ixesha eliphakathi | Iqinile |
| 262 | - | 34 seconds | Akukho nanye |
| 268 | - | 1.2 days | Akukho nanye |
Uqwalaselo lwe Electron
[Rn] 5f14 6d3 7s2